在 Windows 8.1 或 Windows RT 8.1 中查找操作系统信息. 要查找设备运行的 Windows 版本，请按 Windows 徽标键 键 + R，并在“打开”框中键入“winver”，然后选择“确定”。. 如果你的设备运行的是 Windows 8.1 或 Windows RT 8.1，那么有关详细信息，可以参阅以下内容：

Before you start. Check these things before you start troubleshooting Bluetooth on your device: Check your product information. If you’re setting up a new device and Bluetooth is missing, check the product specifications to make sure it has Bluetooth capabilities.

Battery saver is turned off.To find out if battery saver is turned on or off, select Start , then search for settings.Select Settings > System > Power & battery.If you want the best HDR video experience even when battery saver is turned on, select Battery saver, then turn off Lower screen brightness when using battery saver.For the best HDR video experience, Windows needs to be able to set ...

Remarque : Si moins de 10 jours se sont écoulés depuis la mise à niveau vers Windows 10, votre version précédente de Windows s’affiche en tant que fichier système que vous pouvez supprimer.Si vous devez libérer de l’espace disque, vous pouvez le supprimer, mais n’oubliez pas que cela supprimera votre dossier Windows.old, qui contient des fichiers qui vous donnent la possibilité ...

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Note: If you have dismissed the dialog, use the hotkey CTRL + Windows + N to access the Narrator settings. Next, you should proceed to the Choose a Voice combo box and then click the button that says "Show All Settings" just below the combo box.The Add button, which is displayed after the speed, pitch, and volume options for the presently selected voice, can be activated from here.

Describes how use Wusa.exe to install and uninstall update packages in Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows 8.1, Windows Server 2012 R2, Windows 10, and Windows Server 2016 Technical Preview.

获取 Microsoft Edge 的帮助和支持。 查找 Microsoft Edge 支持内容、操作方法文章、教程等。

If you have Office 2007, Skype for Business 2016 won't be fully integrated with your Office programs. For example, you won't see the presence of your co-workers when you type an email in Outlook (by "presence" I mean you won't see whether they're available, busy, or away), and you won't have a few other features.

Active content is additional functionality in a file or program, such as macros, add-ins, or data connections. This article lists types of active content that can be blocked by settings in Trust Center and which, when present in a document, cause display of the Message Bar when you open your file.